Extremely interesting observation, Radek!!
Wish I had some information to add to the subject but I am sadly not so observant.
It's not unlike all the players who have gotten so stressed over the 1 point increases on level up while I just played on figuring (rightly so) that it would all work out in the end. Fortunately, there are other players who pay attention to those details you've mentioned. It will be very interesting to read this thread as they add their comments!
Wyv